Improvement in coal-stoves



J. MORRISON, Jr.

Heating Stove Pat nted Feb. 21, 1865.

tJNrTnn STATES JAMES MORRISON, JR,

FFICE.

PATENT OF TROY, NEWV'YORK.

iMPPtOVEMENT IN COAL-STOVES.

To all whom it may concern:

Be it known that 1, JAMES MORRISON, J r., of the city of Troy, county ofRenssela-er, State of New York, have invented certain new and usefulImprovements in Goal-Burning Stoves and I do hereby declare thefollowing to be a full, clear, and exact description of the constructionand operation thereof, reference being hereby had to the accompanyingdrawings, and to the letters of reference marked thereon, which saiddrawings make a part of this specification.

Like letters represent and refer to like or corresponding parts.

Figure lis a front perspective view of the stove hereinafter describedand set forth. Fig. 2 is a sectional view showing the variousimprovements or invention herein described and set forth. Fig. 3 is thefirst or outside plate, which corresponds to the opening leading to thefire grate from the front of the stove or outside cylinder andhereinafter more fully described. Fig. 4 shows the fire-grate and theframe or vertical grate receiving and holding said fire'grat-e for thepurposes hereinafter set forth. Fig. 5 represents the same device asFig. 4, with the exception that this figure shows the fire-grate in adumped position. Fig.6 shows the inside plate, which corresponds to anopening in the plate surrounding the fire-grate and leading to thesurfacegrate fire-chamber from the hot-air-radiating chamber,hereinafter more fully described. Fig. 7 shows the hook or iron foroperating upon the fire at or near the bottom of the firechamber andjust above the fire-grate. Fig. 8 shows the handle used for the purposeof shaking the fire-grate, for lifting from the ash pit or chamber theash pan or box, and for the purpose of removing from its place thedevice shown at Fig. 6. Fig. 9 shows the ash pan or box, which is placedin the ash pit or chamber directly underneath the tire-grate.

The nature of my said invention and improvements consists in theconstruction and employment of a lateral vibrating and dumpingfire-grate in combination with a vertical grate-frame so constructed asto permit or allow ashes, cinders, or any other material which wouldobstruct the draft or prevent the coal 011 the fire-grate from burningfreely to be removed therefrom through a recess, hereinafter described,or its equivalent, without the necessity of dumping the fire-grate, aswell as to prevent thereby the rekindlin g or restarting of the fireupon said grate in said stove, and

allow the said fire to continue burning above and upon the said gratewhile the cinders or other obstructing material is being removedtherefrom just above and upon the immediate upper surface of suchvibrating or other firegrate, by the means and in the mannersubstantially as herein described and set forth.

It also consists in the employment of a castiron or fire-brick ring withan air-chamber therein, and located at or near the center of thefire-chamber from the bottom to the top thereof, and perforated withnumerous small apertures leading from such air-chamber to thefire-chamber, so as to admit atmospheric air to the combustible materialin the firechamber at the side thereof, about halfway between theburning surface of the coal and the top of the fire-grate, and beinglimited to the specified air-chamber ring, or means herein described,and set forth in said drawings at Fig. 2 thereof.

Having thus described the nature of my said invention and improvements,I will here proceed to describe the construction and operation of thesame in order to enable any person skilled in the art to which my saidinvention relates to make and use the same, which are as follows, toWit:

A is the base, constructed in the usual manner, and of any size, style,or shape desirable. This base rests on legs or supports in the usualmanner. B is the cap or upper plate of the said base, and is made tocorrespond with the upper portion of the said base as to size or shape.It receives the outer cylinder, 0, and the. inner cylinder, D, Fig. 2,attheir lower ends, and has an opening, E, leading from the outside of thestove into the fire-chamber at or near the immediate surface of thefire-grate F, Fig. 2. The said inner cylinder,l), is made of cast-iron,and of any shape, size, or height deemed best, and is lined upon itsinside with fire-brick in the usual manner, with the exception of theair-chamber ring Gr, Fig. 2. At the top of this inner cylinder, I,construct a guard or grate, H, Fig.2, so as to prevent any coal fromfalling into the flue or heating-chamber I, between said outer and innercylinder.

This guard may be in a conical grate form, or as shown in the drawings,and is just above the upper end of the said fire-brick and firechamber-The outer cylinder, 0, should be made of sheet Russia or other goodiron, and

may extend to any desired distance above the catcs by means of theopenings J'J, Fig. '2, down and through which the heated air or productsof combustion pass into fines, which pass into an opening or pipe in theback part of the said base leading into an exit-pipe passing upward nearthe back of the-st ove and uniting with a short pipe leading from andabove the fire-chamber to the exit-pipe leading to the chimney, in thewell-known and usual manner. This short pipe will contain the usualdamper for the purpose of regulating the direct or downward andcirculating draft. In the back and lower part of the said vertical pipeconnecting with said exit flue or pipe at the base, and also with thesaid short pipe leading from the upper part of the firechamber, 1construct a ventilating'damper in the usual manner. The said iron ring Gmay he of any capacity desired. 1 make it in thickness to correspondwith the thickness of the said fire-brick K and of any height deemedbest. The air-chamber within this ring will be made as large asconvenient. The said ring G may be made in two or more parts orsections. This ring rests upon the top edge of the first or second tierof fire-brick K and K. The next adjoining tier of fire-brick will re stupon its lower end, at the upper part of the said iron ring G, as shownat Fig.2. This ring will contain upon its inner side numerous smallapertures leading from the said air-chamber G, Fig. 2, into the fire orchamber of combustion, for the purpose of admitting to the side of theburning fuel therein atmospheric air, to aid in the more perfectcombustion of such fuel. The said air-chamber G re eives the atmosphericair from the room or place where such stove is used by means of a smallpipe or tube of sufficient capacity at the rear part of the stove, whichextends from the outside of the cylinder 0 through the heating-chamberI, and through the inner cylinder, D, and then opens into the saidair-chamber G, thereby admitting said atmospheric air to the firechamberin as cold a state as possible.

I construct the fire-grate F in a frame, as shown at Figs. 4 and 5. Thesaid grate-frame is so constructed as to fit to or correspond with thebase of the stove and the fire chamber and cylinders resting thereon.This frame will contain a vertical grate, M, Figs. 4 and 5, which willbe of any desired capacity. The lower part of this inner recess willcontain a horizontal grate, 0, Figs. 4 and- 5. This horizontal gratewill be at its top part or surface upon a line with the top part of thedumping and vibrating grate F, same figures, so that cinders or anyobstructing material to the draft or free burning of the fuel upon saidgrate F may be removed therefrom through said recess into the ash panorbox P, Figs. 2 and 9, through and over the said horizontal grate 0,Figs. 2, 4, and 5, by means of the hook-iron shown at Fig. 7. This willobviate the necessity of dumping the fire-grate, and, of course, therekindling of the fire, when obstructed by means of cinders or any likesubstance, permitting thereby the fire to continue unobstructed bysuchmeans or material. The draft is admitted to the fire through saidgrate F in the usual manner by means of a sliding damper shown at Fig.1, which is in the ash pan or chamber door shown at Figs. 1 and 2. Thisstove is durable in its construction and most economical in fuel usedtherein, while it has great capacity for the radiation of heat. It givesout a great amount of heat from a small quantity of coal consumed in agiven time.

Having thus described my invention and improvements in coal-stoves, whatI claim, and desire to secure by Letters Patent,'is-

1. The employment of a vertical grate and frame, I, with the downwardrecess E and horizontal grate 0 therein in combination with the dumpingand vibrating grate F, in the manner and forthe purposes substantiallyas herein described and set forth.

2. In combination with a stove, a grate so constructed and arranged thatthe clinkers or like draft-obstructing material may be removed from anypoint or place at orjust above its surface Without dumping saidgrate, inthe manner substantially as herein described and set forth.

3. The special arrangement and combination of the iron ring G,containing the airchamber G, and communicating with the fire at thesides of the fire-chamber by means of numerous small apertures, with thetiers of fire-brick K and K surrounding the fire-chamber above and belowthe said iron ring, in the manner substantially as herein described andset forth.

In testimony whereof I have hereunto set my hand.

' JAMES MORRISOX, JR. Witnesses:

CHARLES D. KELLUM,

It. H. REILLE.

